Product Tutorials: Avseal® Sealing Plugs
What They Are
Sealing plug for low and high pressure hole sealing applications.
The new range of Avseal® II blind sealing plugs are a high performance
sealing system consisting of a mandrel and sleeve combined into a single
assembly. The Avseal® II is unique in the efficient sealing performance
they provide in low and high pressure hole sealing applications*.
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Fully annealed sleeve - high sealing performance
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Hole fill capacity - improved seal and wider hole tolerance
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Larger hole tolerance - simplified hole alignment when automated placing
is required
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Seal by compression of the sleeve - improves sealing with great hole fill
capability over a wider hole tolerance
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Internal lock - flat nose tip and ease of use
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Improved stem retention - increased vibration resistance
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No locking ring formed by nose tip - standard equipment reduces preventative
maintenance
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Low force special version - can be used in thin wall applications
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Tapered sleeve and stem - ease of entry into application and nose tips, suited
to automated systems
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Shorter placed length, blind side protrusion reduced - use in restricted
space or thin wall
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Can be easily modified - can suit specific applications
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Ease of placing with standard tooling - quality of seal is not operator dependant
 |
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Avseal® plugs consist of 3 features:
A. Sleeve
B. Stem (a.k.a. Mandrel, Pin)
C. Stem Head
*02961 series - Available in 4-12mm diameter for high pressure sealing
applications
*02964 series - Available in 8-16mm diameter for low pressure sealing
applications |
How They Work
 View an interactive
demo
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During the placing sequence, the jaws of the placing tool lock onto pulling
serations on the mandrel and pull the mandrel axially forcing the mandrel
head into the plug.
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The sealing plug expands to accept the mandrel head and continues to expand
as the mandrel travels through the plug.
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The plug expands radially inside the application and fills the application
hole.
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The force required to travel through and expand the plug increases in each
stage of the placing sequence until finally the stress is so high that the
mandrel breaks.
Avseal® Plugs
| Brand |
Material |
Key Features |
 |
Aluminum |
Avseal® II
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02961 series for high pressure sealing applications
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02964 series for low pressure sealing applications
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Hole fill capacity for improved seal and wider hole tolerance
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Improved stem retention increases vibration resistance
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Installed with current range of installation tools
|
Avseal® Selection
Sealing Pressure
Sealing pressure above 300 bars - 02961 series
Sealing pressure below 300 bars - 02964 series.
Hole Depth
The hole depth of the parent material must fall within the suggested range
of the Avseal® plug to ensure proper installation and function.
Hole Size
It is important to control the hole size accurately in order to ensure optimum
Avseal® plug performance.
Hole Surface Preparation
Recommended hole roughness is 50-250 micro inch Ra.
Application
Installation Tools
| Tool |
Description |
 |
722 (Hydro-Pneumatic)
Avseal® II sealing plugs 11-12mm (high pressure 02961 series) and 13-14mm (low pressure 02964 series). |
|
 |
73411 (Hydro-Pneumatic)
Avseal® II sealing plugs 15 - 20mm. |
|
 |
nG1 (Hydro-Pneumatic)
Avseal® II sealing plugs 4 and 5mm. |
|
 |
nG2 (Hydro-Pneumatic)
Avseal® II sealing plugs up to 7 mm. |
|
 |
nG2S (Hydro-Pneumatic)
Avseal® II sealing plugs up to 7 mm. |
|
 |
nG3 (Hydro-Pneumatic)
Avseal® II sealing plugs up to 9mm. |
|
 |
nG4 (Hydro-Pneumatic)
Avseal® II sealing plugs up to 12mm. |
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